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Dwell Time setting

Advance the menu to the Dwell Time parameter. The display will show:

Dwell Time = XXX.X s

Range : 0.5 - 999.9 0 = Constant

Use the Numeric keys to enter the Dwell Time setting, then press the ENTER key. The

program will store the Dwell Time setting and advance to the Charge-LO parameter

automatically. The unit is second and 0.1 second per step.

Press the EXIT key to exit from the setting mode to the operation mode if all parameters

have been set.

If the Dwell Time is set to “0”, the timer will continue to count to the maximum test time

then reset to 0 and start over automatically. The test will continue until a reset is

executed or a failure occurs.

Charge-LO

Advance the menu to the Charge-LO parameter. The display will show:

Charge-LO = XXX.X A

TEST to Auto Set

The Charge-LO function is used to check if the test cables are connected properly at the

beginning of a test. A capacitive DUT will draw charging current on the DC Withstand

Voltage test when the Output is activated. If the charging current is lower then the

setting, the test cables may not be connected properly.

This instrument can set the Charge-LO value manually or automatically. To set the

Charge-LO value manually, use the numeric keys to enter the Charge-LO current setting

and then press the ENTER key . The program will store the Charge-LO setting and

advance to the Ramp-HI parameter. The setting range of Charge-LO is from 0.0 to 350.0

A. The unit is A and 0.1A per step.

To use Auto Set, be sure that the test parameter of Output Voltage and Ramp Time have

been set to the values that will be used for the Final test and connect the test cables and/or

test fixture between the instrument and DUT. If the scanner is to be used then the

scanner channel must also be set, and then press the TEST button. The instrument will

apply the voltage that has been entered for this memory-step selection.

Please be aware that the program will activate high voltage

on the output connector while the Test button is pressed.

The program will read the charging current of DUT and set the Charge-LO current at

approximately one half (1/2) of the reading. The display will show:

Associated Research 7704 User Manual

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